2011年12月17日 星期六

日本年齡層/日本3月的震災垃圾抵加拿大溫哥華島/Fukushima Plant Stable

日本3月的震災垃圾抵加拿大溫哥華島
Debris apparently from Japan tsunami wash up on Canada beach
Washington Post
Debris apparently from the tsunami that hit Japan in March are washing up on beaches on Vancouver Island. Much greater amounts of debris could reach the US And Canada in the next year. (Dec. 16) (/The Associated Press) Correction: Clarification: ...


Japan's Prime Minister Declares Fukushima Plant Stable
New York Times
By HIROKO TABUCHI TOKYO — Prime Minister Yoshihiko Noda of Japan has declared an end to the world's worst nuclear crisis since Chernobyl, saying technicians have regained control of reactors at the Fukushima Daiichi nuclear power plant. ...


Fleeing from Malthus

Dec 16th 2011, 15:17 by The Economist Online

Will Africa's population boom end in dividend or disaster?

AFRICAN demography is unique. It is the only continent that will double in size, reaching 2 billion people by 2045 at current rates. Some countries, such as Liberia and Niger, are growing faster still. They are due to double in size in less than 20 years—an increase that is causing forecasts of Malthusian disaster for countries that cannot feed themselves. Yet Africa is also showing signs of embarking on the same transition towards smaller families that has occurred everywhere else, thus avoiding the Malthusian trap. When fertility started to fall in Asia after 1960 and Latin America after 1970 it did so quickly, ineluctably and universally. The number of children a woman could expect in her lifetime fell from six to two in a generation. Evidence of lower fertility is raising hopes that Africa can reap a “demographic dividend”, the economic benefit countries get when the share of the working-age population rises relative to children and old people.


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